Assistant Developer for live production application and internal workflow automation

AI focused agency needs assistance with development. Ideal candidate will assist with live production web application, internal workflow automation, internal application development. Preferred experience with the following: - React across both SPA and Next.js App Router architectures - Postgres and Supabase in production. RLS-based authorization experience required - Third-party API integration: OAuth, webhooks, Stripe or similar billing - Automation that lives in code we own, not no-code platforms (Zapier, Make, n8n) - Long-running background services and job-queue workers. We deploy on Railway; containerized equivalents all count - Hands-on LLM API integration beyond chat wrappers - Comfortable in an AI-assisted (Claude Code) workflow with strict review discipline. This is a live production system with a real client base - Bonus: Webflow Data API and MCP, Gmail API and Google Cloud Console, email deliverability, Higgsfield